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Yes, calla lilies can be grown from seed, but it’s a journey that requires patience and a bit of know-how.
While most gardeners start calla lilies from bulbs or rhizomes, growing calla lilies from seed is absolutely possible and can be a rewarding challenge.
If you’ve ever wondered can calla lilies be grown from seed, the answer is yes, and in this post we’ll walk through everything you need to know.
We’ll cover how to collect seeds, how to germinate them, and how long you’ll wait before seeing those elegant blooms.
Let’s dig into the fascinating process of growing calla lilies from seed.
Why Calla Lilies Can Be Grown From Seed
Growing calla lilies from seed is entirely possible, and here’s why it works.
Calla lilies produce seeds after their flowers are pollinated, and those seeds carry the genetic blueprint for new plants.
Unlike some hybrids that don’t come true from seed, calla lilies can be grown from seed with varying results in color and size.
The key is understanding that calla lilies can be grown from seed, but they require specific conditions to sprout successfully.
Here are the main reasons why this method works and what to expect.
1. Calla Lilies Produce Viable Seeds Naturally
When calla lily flowers are pollinated, they form clusters of small, green berries that contain seeds.
These berries mature about three to six months after flowering, turning yellow or orange when ready.
You can harvest these seeds easily by waiting for the berry clusters to soften and then crushing them to separate the seeds.
Each berry can hold several seeds, so a single flower spike can give you dozens of chances to grow new calla lilies from seed.
The viability of these seeds is surprisingly high if you collect them at the right time.
2. Seeds Respond Well to Scarification and Soaking
Calla lily seeds have a tough outer coat that needs a little help to let moisture in.
To improve germination when you grow calla lilies from seed, you can nick the seed coat with a file or soak them in warm water for 24 hours.
This process, called scarification, mimics the natural wear and tear seeds experience in the wild.
After soaking, you’ll notice the seeds swell slightly, which signals they’re ready to sprout.
This simple step makes a huge difference in how many seeds actually germinate.
3. Patience Is Key with Seed-Grown Calla Lilies
Calla lilies can be grown from seed, but they won’t bloom overnight.
Seeds typically take anywhere from a few weeks to three months to germinate, depending on temperature and moisture.
Even after they sprout, young seedlings need at least one full growing season to develop strong roots and leaves.
You’ll likely wait two to three years before your first flowers appear when starting calla lilies from seed.
For gardeners who love a long-term project, this waiting period is all part of the fun.
How to Grow Calla Lilies from Seed Step by Step
Now that you know calla lilies can be grown from seed, let’s get into the practical steps to make it happen.
Follow these instructions carefully, and you’ll be well on your way to raising your own calla lily seedlings.
Here’s the full process broken down into manageable stages.
1. Collect and Prepare Your Seeds
Start by harvesting seeds from mature calla lily berries, which should feel soft and plump.
Squeeze the berries into a bowl of water, and the seeds will sink while the pulp floats.
Rinse the seeds thoroughly and spread them on a paper towel to dry for a few days.
Once dry, store them in a cool, dark place until you’re ready to plant, or sow them immediately if it’s spring.
For best results, use fresh seeds that haven’t been stored for more than a year.
2. Sow Seeds Indoors in a Seed Tray
Fill a seed tray with a well-draining potting mix, ideally one that’s light and rich in organic matter.
Press each calla lily seed about a quarter-inch deep into the soil, spacing them about an inch apart.
Water the tray gently so the soil is moist but not waterlogged, as soggy conditions can rot seeds.
Place the tray in a warm spot with bright, indirect light, maintaining a temperature around 70°F (21°C).
Cover the tray with a clear plastic dome or plastic wrap to create a mini greenhouse effect.
3. Keep the Soil Consistently Moist
Calla lilies can be grown from seed only if you keep the soil evenly moist throughout germination.
Check the tray daily and mist the surface with water if it feels dry to the touch.
Avoid letting the soil dry out completely, as seeds will die quickly without consistent moisture.
But also be careful not to overwater, since standing water encourages fungal diseases.
A spray bottle is your best friend here for gentle, even watering.
4. Transplant Seedlings Once They’re Big Enough
After several weeks, you’ll see tiny green shoots emerging from the soil.
Wait until seedlings have at least two sets of true leaves before transplanting them into individual pots.
Use small pots, about three inches wide, filled with the same well-draining potting mix.
Gently lift each seedling with a spoon or fork to avoid damaging the delicate roots.
Water the transplants lightly and keep them in a bright location out of direct, harsh sunlight.
5. Harden Off and Plant Outdoors in Warmer Months
Once the danger of frost has passed, you can move your calla lily seedlings outdoors.
Start by placing them outside for a few hours each day in a sheltered spot, gradually increasing their time outside.
After about a week of this hardening-off process, plant them in the garden or a larger container.
Choose a location with full sun to partial shade and soil that drains well.
Space plants about 12 inches apart so they have room to grow without competing for nutrients.
Common Challenges When Starting Calla Lilies from Seed
Even though calla lilies can be grown from seed, there are a few hurdles you might hit along the way.
Being aware of these issues ahead of time can save you frustration.
Here’s what to watch out for and how to fix it.
1. Slow or Uneven Germination
Calla lily seeds are notorious for slow germination, sometimes taking up to three months.
If you see no sprouts after six weeks, don’t give up, just be patient and keep conditions consistent.
Try bottom heat with a heat mat set to around 75°F to speed things up.
Uneven germination is normal, so some seeds will sprout weeks before others.
Just continue caring for the tray as a whole until the majority have emerged.
2. Damping Off Disease
Damping off is a fungal issue that kills young seedlings at the soil line.
To prevent it, always use sterile potting mix and clean containers.
Avoid overwatering and ensure good air circulation around your seed tray.
If you spot mold on the soil surface, remove affected seedlings immediately.
A light dusting of cinnamon on the soil can act as a natural antifungal.
3. Waiting Years for Blooms
The biggest challenge when you grow calla lilies from seed is the long wait for flowers.
Most seed-grown calla lilies take two to three years to reach blooming size.
Meanwhile, they’ll focus on building a strong root system and foliage each season.
Be patient and keep feeding them with a balanced fertilizer during the growing season.
Eventually, your patience will be rewarded with stunning, unique blooms.
So, Can Calla Lilies Be Grown From Seed?
Yes, calla lilies can be grown from seed, and it’s a wonderful project for adventurous gardeners.
While it takes patience and care, the process is completely doable for anyone willing to learn.
From seed collection to germination and finally to those elegant flowers, the journey is deeply satisfying.
Just remember that calla lilies can be grown from seed with proper scarification, consistent moisture, and warm temperatures.
And don’t forget that you’ll wait a couple of years before you see your first blooms.
Over time, you’ll have a gorgeous display of calla lilies that you grew from scratch.
So grab some seeds, follow these steps, and enjoy the magic of growing calla lilies from seed.